Island



(No Model.)

W. E. TAFT.

WRENCH.

Patented May l0 WITNESS E5.

lNvEm-na.

maya/f UNTTED STATES W'AIIIER E. TAFT, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO VALTER E. TAFT 85 OO., OF SAME PLACE.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 362,908, dated May 10, 1897.

Serial No. 221,030. (No model.)

To @ZZ whom, it may concern:

Beit known that I, WALTER E. Tnn'r, a cit-izen ofthe United States, residing at Providence, in the State of Rhode Island, have invented 5 a new and useful Improvement in Vrenehes,

of which the following is a specification.

My invention relates to that class ofwrenchcs the jaws of which are made adjustable by means of a screw, and it consists in the imio proved combination of the jaw operating screw with a supplemental screw and lever and the ferrule of the wrench, as hereinafter fully set forth.

Figure l is a side view of the wrench pro- 15 vided with my improvement, a portion of the ferrule being broken away to show the supplemental screw for tightening the jaws upon the nut. Fig. 2 represents a erosssection taken in the line xm of Fig. 8. Fig. Sis a detail 2o View showing the socket in the supplemental screw.

In. the raccompanying drawings, A is the handle ofthe wrench, B, the ferrule, O, the stationaryjaw; D, theshank, E, the movablejaw 25 having ascrew-threaded socket, I; and F, the operating-screw, which is provided with the milled collar b for turning the same, and enters the socket I of the movable jaw. The supplemental screw G, provided with an integral 3o handle or lever, H, is recessed or chanibered to 'form a bearing-socket, c, for the rear end of the screw F, and is screwed into the threaded chamber a or socket in the ferrule B, so that when the handle or lever H is turned 3 5 up against the side of the shank D, as shown in Fig. 2, the screw F and movable jaw E will be pressed forward,

In operating with the wrench, the lever H of the supplemental screw is first turned downward to the position shown by the broken lines .to in Fig. l, and the jaws of the wrench then brought against the sides ofthe nut by means ol' the fingers operati ng upon the milled collar b of the screw F, to revolve the same. Then, by bringing the lever H back to the position at 5 the side of the shank D, as shown by the full lines, the screw F and jaw E will be pressed forward in a powerful manner to tightly grip the nut J between thejaws O and E.

My improvement, as above described, can 50 be readily applied to the screw-wrenches in common use by simply removing the ferrule of the same and substituting therefor a new -fcrrule having a serewthreaded socket, a,

adapted to receive the supplemental screw, 5 5 thus effecting a desirable improvement in wrenches which have already been manufactured and are now in use.

I claim as niyinvention- In combination, the stationary jaw C, mova- 6o ble jaw E, provided with a screw-threaded socket, I, operating'screw F, having a milled collar, b, the supplemental screw G, provided with the integral lever H, and the screw-holding socket c, and t-he ferrule B, provided with 65 the screw-threaded socket a, adapted to receive the supplemental screw, substantially as described.

WALTER E. TAFT.

Witnesses:

JOHN S. LYNCH, Sooimr'ns ScnoLrrnLD. 

